How to calculate density? Given: Mass: 20.0 grams Volume is 31.0 ML I got 620g/mL. I want to know if this was right.

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electreto05's profile pic

electreto05 | College Teacher | (Level 1) Assistant Educator

Posted on

The density of a body is defined as the ratio of the mass m, and the volume V occupied by the body.

ρ = m/V

ρ   →   Density

m   →   mass of the body.

V   →   Volume of the body.

In this case we have a density:

ρ = 20.0 g/31.0 ml = 0.645 g/ml

It means you should check your calculations. Maybe the equation used is not correct.

gsenviro's profile pic

gsenviro | College Teacher | (Level 1) Educator Emeritus

Posted on

density is a ratio of mass to volume,

so density = mass/volume = 20/31 gm/ml = 0.645 gm/ml

thecmsiansonalagarwalrocks's profile pic

thecmsiansonalagarwalrocks | Student, Grade 11 | eNotes Newbie

Posted on

Density=Mass/Volume

Given mass=20.0 g)

Given volume=31.0ml

Therefore,density=20.0/31.0 g/ml

                        =0.6451629

                        =0.645(approx round off)

HOPE IT HELPS!!

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